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Focusrite Liquid Channel
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Item Number: FOCLQDCHAN
Manufacturer: Focusrite
Manufacturer Part No: FOCLQDCHAN
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Untitled Document
Focusrite Liquid Channel
Revolutionary Liquid Channel Strip.
Overview
The Liquid Channel transports classic front-end processing into the digital age, removing the need for endless patching and adding fluidity and reliability to the studio environment. Quite simply, The Liquid Channel is every mic pre and compressor combination in history, inside a single 192kHz 2U device.
This is achieved through a unique two-part process. Firstly, the use of dynamic convolution techniques is applied, utilising lightning fast SHARC chips applying unique level-dependent impulse responses to every sample of audio. However, whilst this is more than sufficient to identically re-synthesise a compressor’s sonic behaviour, in order to replicate precisely every subtle nuance, the preamplifier must physically match the way in which the classic unit interacts with a given microphone. The Liquid Channel’s solution to this problem lies in its vast analogue front-end. A preamp with the ability to change its impedance and vary its signal path to either transformer or electronic, perfectly replicating the interaction characteristics of the original, whilst remaining entirely transparent within the signal path.
The Liquid Channel can therefore replicate precisely the sound of any classic mic pre and compressor. With entirely digital front panel controls, all parameters can be saved in one of ninety-nine user memories, meaning that entire session set-ups can all be recalled at the touch of a button. A brand new digital EQ is also available, providing a comprehensive and truly ‘liquid’ channel strip.
 A USB connection on the rear panel links to a software application enabling the archiving of both emulations and surplus user memories, as well as providing remote operation of the unit itself. The Liquid Channel comes complete with forty classic mic pre’s and forty classic compressors but is infinitely expandable, since the USB port also facilitates downloads of further emulations.
Finally, to account for variances in amounts of second order harmonic distortion (usually perceived as warmth) from one preamp to the next, a dial is included to permit control over this value. This essential feature ensures hardcore vintage enthusiasts are satisfied, bringing total control over every sonic attribute.
Essentially, The Liquid Channel provides an unlimited supply of vintage sonic performance for the price of one unit, with all the added benefits of digital processing and control.
"Liquid Technology is the final product of two years pure research into what makes an analogue box sound exactly the way it does. The results of this research have enabled us to develop a hybrid system of analogue and digital technology, capable of recreating every sonic attribute of any classic processor. Focusrite has a history of manufacturing high performance equipment, and of making that technology affordable to all those at every level of the recording industry. The Liquid Channel goes further and makes the obsolete, the priceless and the historically significant, available to everybody for the first time." – Robert Jenkins, Director of Product Strategy – Focusrite.
Key Features
40 mic pres and 40 compressors
The Liquid Channel comes loaded with forty classic mic-pre and forty classic compressor emulations, with an expanding library online.
Best of both worlds
The Liquid Channel fuses cutting-edge analogue design with lightning fast SHARC DSP to deliver the finest preamp emulations possible.
Digital head, analogue heart
The Liquid Channel uses an analogue preamp front-end to match the input impedance and signal path of the device being emulated before applying dynamic convolution for amplification characteristics.
Global Recall
100 program memories allow you to save every parameter, whilst the file format provides easy transfer of these settings to other Liquid Channel users.
Remote Control
Free software application LiquidControl™ allows comprehensive remote operation and archiving facility of emulations and program memories.
192kHz ADC/DAC as standard
The Liquid Channel features the finest conversion paths possible, ensuring the audio is unaffected whilst dynamic convolution is applied in the digital domain.
Not all vintage units are born equal
So the 'Harmonics' dial lets you account for variance in vintage originals, or use levels of 2nd, 3rd and 5th Harmonic distortion creatively.
Emulations & Settings
Focusrite's emulations and settings will help you to make the most of
your Focusrite Liquid products. You'll find a growing library of
emulations, programs and snapshots, with helpful filters and information
regarding the original unit emulated.
Liquid Channel Mic Pres
Emulations
Liquid Channel Compressor Emulations
Specifications
Focusrite
always quotes 'real world' performance figures (measured to the AES17
standard). Some companies choose to quote chipset performance, which is
misleading, and here's why.
Converter performance
• Sample rate: 44.1, 48, 88.2, 96, 176.4 and 192kHz
• Bit depth: 24-bit
ADC
• SNR: 120dB measured with 20Hz/22kHz bandpass A-weighted filter
• Frequency response: ±0.05dB between 20Hz ? 22 kHz
• Maximum input level: +22dBu
• THD+N: 0.00035% (-109dB)
DAC
• Dynamic range: 116dB measured with 20Hz/22kHz bandpass A-weighted filter
• Frequency response: ±0.05dB between 20Hz / 22kHz
• Maximum output level: +22dBu
• THD+N: 0.0007% (-103dB)
Jitter
• Internal clock: < 20 pico-seconds
• AES digital output: < 200 pico-seconds
• External clock: < 1 nano-second
• Analogue and digital path
Mic pre
• Gain range: +6dB to +80dB, switched in 1dB steps
• Frequency response: variable, set by pre-amp chosen
• THD+N at analogue out: 0.001% measured with a +4dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• THD+N at AES digital out: 0.0005% measured with a +4dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• Mic noise: EIN = -126dB measured at 80dB of gain with 150 Ohm source impedance and 20Hz/22kHz bandpass filter
• Noise at analogue out: -92dBu measured at +6dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Noise at AES digital out: -119dBFS measured at + 6dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Maximum input level: +16dBu
• Input impedance: variable, set by preamp chosen
• CMRR: Transformer: 123dB @ 60dB of gain
• Electronic: 102dB @ 60dB of gain
Line input
• Gain range: 10dB to +10dB, switched in 1dB steps
• Frequency response: 0dB ±0.1dB between 20Hz and 20kHz
• THD+N at analogue out: 0.001% measured with a +18dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• THD+N at AES digital out: 0.0004% measured with a +18dBu 1kHz input signal with 20Hz/22kHz bandpass filter
• Noise at analogue out: -92dBu measured at 0dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Noise at AES digital out: -120dBfs measured at 0dB gain with 20Hz/22kHz bandpass
A-weighted filter
• Maximum input level: +22dBu
• High pass filter
• Roll off frequency: switchable between 75Hz and 120Hz, frequency measured at 6dB down point, 12dB per octave roll-off
Harmonics
• Distortion range: 0 to 15 where 15 (maximum) = 10% of 2nd-, 20% of 3rd- and 10% of 5th-order at 0dBFS (level-dependent distortion)
Compressor
In 'As Original' mode the parameter ranges will be the same as on the original unit being emulated. In 'Free' mode the parameter ranges are as follows:
• Threshold range: -40dB to 20dB switched in 1dB steps
• Ratio range: 1:1 to limit
• Attack range: 0.1ms to 2.5s
• Release range: 0.1ms to 2.5s
• Make-up gain: -20dB to +20dB switched in 0.5dB steps
EQ
High Shelf
• Frequency range: 200Hz to 20kHz
• Gain: +/-18dB
Mid Band
• Frequency range: 100Hz to 10kHz
• Gain: +/-18dB
• Q: variable between 0.8 and 2.5
Low Shelf
• Frequency range: 10Hz to 1kHz
• Gain: +/-18dB
Weight
• 8.6kg
• 19Ibs
Dimensions
• 484mm (W) x 85mm (H) x 270mm (D)
• 19" (W) x 3.5" (H) x 10.6" (D)
• 2U rackmount
System Requirements
MAC OS
Mac OS X Tiger (10.4.11 or later)
Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin)
Computer: Apple Mac Power PC G4, G5 or Intel Mac (any) CPU/Clock G4/800 MHz (minimum)
G4/1.5GHZ or higher recommended Memory (RAM) 256MB or more
512MB or higher recommended
WINDOWS
Windows XP Service Pack 2 (all versions)
Windows Vista (32 bit versions only)
Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin)
Computer: Windows XP compatible PC (Pentium© 4 1GHz or higher recommended)
Network card supporting ethernet 10Base-T, 100Base-TX, or 1000Base-T CPU/Clock
1.0 GHz Intel or compatible
2.0 GHz Pentium© 4 or Xeon recommended Memory (RAM) • 256MB or more
512MB or higher recommended
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 Copyright © 2012 Audio Vengeance. All Rights Reserved.
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